Isuzu KB P190. Service manual — part 386
FUEL SYSTEM (4JK1/4JJ1) 6C-3
Explanations on functions and operation
Fuel system diagram
RTW76CMF000101
Legend
1. Fuel Rail
2. Fuel Pressure Limiter
3. Leak Off Pipe
4. Fuel Injector
5. Fuel Return Pipe
6. Fuel Cooler
7. Fuel Tank
8. Fuel Pump and Sender Assembly
9. Fuel Filler Cap
10. Check Valve
11. Fuel Feed Pipe
12. One Way Valve
13. Fuel Filter With Sedimenter
14. Switch; Clogging Monitoring
15. Fuel Supply Pump
6C-4 FUEL SYSTEM (4JK1/4JJ1)
Fuel rail assembly
RTW76CLF000601
Legend
1. Fuel Pressure Limiter
2. Fuel Rail Pressure Sensor
FUEL SYSTEM (4JK1/4JJ1) 6C-5
Fuel supply pump
RTW56CLF000301
Legend
1. Fuel Temperature Sensor
2. Suction Control Valve
3. High Pressure Pipe
4. Camshaft Key
5. Camshaft Nut
6C-6 FUEL SYSTEM (4JK1/4JJ1)
Fuel injector
RTW76CMH000201
Legend
1. Terminal
2. Fuel Injector ID Code
3. Two Dimensional Barcode
4. Parts Number
5. Port for Mounting the Injection Pipe
6. O-ring
Fuel filter
RTW76CSH001001
Legend
1. Element
2. Air Bleeding Plug
3. Switch; Clogging Monitoring
4. Sensor;
Water
5. Drain
Plug
Functional check
Air bleeding
1. Ignition switch is turned to the ON position for 15
seconds.
2. Ignition switch is turned to the OFF position.
3. The above operation is repeated 5 times.
Note: If the air bleeding work is insufficient then it could
lead to faults in the engine. Therefore, the procedures
after starting the engine should always be implemented.
Water drain
A warning lamp will light up if water above the specified
volume collects in the sedimenter. In such cases, drain
out the water by performing the following operations:
1. Draining with fuel filter drain plug.
a. Set a container at the tip of the plastic hose.
b. Loosen the air bleeding plug and the drain plug.
c. Discharge the water.
d. Tighten the drain plug after discharging the
water.
e. Tighten the air bleeding plug to the specified
torque.
Tightening torque: 3 N
⋅m(0.3 kg⋅m/26 lb in)
f. Ignition switch is turned ON for 15 seconds
check for fuel leakage.
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